tdf#138010 (II) getNativeControlRegion (gtk3/kf5): Consider frame's border

Take the frame border/padding into account when calculating
the content rectangle (i.e. the area that can safely be
drawn into without overlapping the actual frame) when
calculating dimensions in 'getNativeControlRegion' regardless
of the exact 'DrawFrameFlags' being passed.

Previously, gtk3 and qt5 only did this when the
'DrawFrameFlags::NoDraw' flag was passed in addition,
but the actual drawing routine 'drawNativeControl'
does not make any such distinction, so the frame ended
up at a place that was still in the "content rectangle"
as calculated previously (which was the same as the bounding
rect).

Returning the actual content rect is a prerequisite
for making 'VclScrolledWindow' take the width of a natively
drawn frame into account, which will be done in a
follow-up commit.

Change-Id: I8d3a3fbd387108a24a0478e3465c8950e6d59735
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/106155
Tested-by: Jenkins
Reviewed-by: Michael Weghorn <m.weghorn@posteo.de>

1 files changed, 15 insertions, 20 deletions

diff --git a/vcl/unx/gtk3/gtk3salnativewidgets-gtk.cxx b/vcl/unx/gtk3/gtk3salnativewidgets-gtk.cxx
index 74f7e421e2f5..6e91fc3503d2 100644
--- a/vcl/unx/gtk3/gtk3salnativewidgets-gtk.cxx
+++ b/vcl/unx/gtk3/gtk3salnativewidgets-gtk.cxx
@@ -2083,30 +2083,25 @@ bool GtkSalGraphics::getNativeControlRegion( ControlType nType, ControlPart nPar
     else if (nType == ControlType::Frame && nPart == ControlPart::Border)
     {
         aEditRect = rControlRegion;
-        DrawFrameFlags nStyle = static_cast<DrawFrameFlags>(rValue.getNumericVal() & 0xfff0);
-        if (nStyle & DrawFrameFlags::NoDraw)
-        {
-            GtkBorder padding;
-            gtk_style_context_get_padding(mpFrameInStyle, gtk_style_context_get_state(mpFrameInStyle), &padding);
 
-            GtkBorder border;
-            gtk_style_context_get_border(mpFrameInStyle, gtk_style_context_get_state(mpFrameInStyle), &border);
+        GtkBorder padding;
+        gtk_style_context_get_padding(mpFrameInStyle, gtk_style_context_get_state(mpFrameInStyle), &padding);
+
+        GtkBorder border;
+        gtk_style_context_get_border(mpFrameInStyle, gtk_style_context_get_state(mpFrameInStyle), &border);
 
-            int x1 = aEditRect.Left();
-            int y1 = aEditRect.Top();
-            int x2 = aEditRect.Right();
-            int y2 = aEditRect.Bottom();
+        int x1 = aEditRect.Left();
+        int y1 = aEditRect.Top();
+        int x2 = aEditRect.Right();
+        int y2 = aEditRect.Bottom();
 
-            rNativeBoundingRegion = aEditRect;
-            rNativeContentRegion = tools::Rectangle(x1 + (padding.left + border.left),
-                                             y1 + (padding.top + border.top),
-                                             x2 - (padding.right + border.right),
-                                             y2 - (padding.bottom + border.bottom));
+        rNativeBoundingRegion = aEditRect;
+        rNativeContentRegion = tools::Rectangle(x1 + (padding.left + border.left),
+                                         y1 + (padding.top + border.top),
+                                         x2 - (padding.right + border.right),
+                                         y2 - (padding.bottom + border.bottom));
 
-            return true;
-        }
-        else
-            rNativeContentRegion = rControlRegion;
+        return true;
     }
     else
     {